.letter {
  width: 324px;
  overflow-x: auto;
  position: relative;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}

.letter_container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.letter_container_active {
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
}

.letter_content {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  padding: 0 5px;

  input {
    width: 40px;
    height: 40px;
    margin-bottom: 16rpx;
    border-radius: 50%;
    border: 2px solid #0091EA;
    outline: none;
    background: none;
    font-size: 32rpx;
    color: #0091EA;
    font-weight: 600;
    text-align: center;
    line-height: 80rpx;
    pointer-events: none;

    &.active {
      background: #B9E2FF;
    }

    &.error {
      background: #FFCFCF;
      border-color: #FF0000;
      color: #FF0000;
    }

    &.correct {
      background: #D6FFB8;
      border-color: #009944;
      color: #009944;
    }
  }
}

.letter_content ::v-deep .uni-input-form,
.letter_content ::v-deep .uni-input-wrapper {
  width: 100%;
  height: 80rpx;
}